edelson (03/10/83)
Does anyone know of a version of UNIX or a UNIX-like operating system in-being or under development for the size of personal computer which is coming into vogue for the undergraduate? Several schools are requiring all students to own (or rent, etc.) personal computers as part of their equipment, and it would seem to be a grand opportunity if UNIX could be brought up on a machine in the few K$ cost range.
iy47ab (03/13/83)
Very definitely YES. Now that microsoft has come up with XENIX (UNIX in disguise), others are following suit and it is likely that soon UNIX will be available for a large variety of microcomputers. Also, if you get the "C" compiler for the Apple II, you will find that it runs on a sort of "pseudo-UNIX", embodying a lot of UNIX commands and making the transition both easy and pleasant. Lady Arwen of UCSD
bernie (03/16/83)
Just for the record, it's worth noting that every major operating system for a 16-bit micro has been written in C. Not just Unix/Xenix and other licensed Unix derivatives, and all the Unix lookalikes (e.g. Qunix), but the latest releases of both CP/M and MSDOS (also called PCDOS or SB-86). Interesting, eh? (I'm Canadian). --Bernie Roehl ...decvax!watmath!watarts!bernie
dyer (03/23/83)
Not so! CP/M, CP/M+, CP/M-86 and MSDOS are still written in their native assembly languages, with maybe a little PL/M thrown in for variety (MSDOS V.2 might be in C, not sure.) I believe, of the CP/M clones, only CP/M-68 was written in C from the ground up.
gnu (03/25/83)
I believe MSDOS V.2 is assembler in the kernel but C in the user programs. But to go back to the original comment, all the operating systems for 16-bit micros HAVE been written in C. You certainly can't call CP/M an operating system. An I/O supervisor perhaps. John Gilmore, Sun Microsystems